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1.51ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG778671695

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778671695

Diamond specifications and retailer prices

From $363 NZD
$204 USD
As of October 29, 2026
Save $1,577 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,940 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778671695 or 778671695. Listed at 11 retailers as of October 26, 2026, with prices from $363 to $1,940, a $1,577 spread on the same certified stone. MOH London lists it at $1,940. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778671695
Dimensions7.38 × 7.34 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.38 mm7.34 mm1.51 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778671695
Side View
Table 58.0%Crown 34.9°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,940 NZD|Low: $335 NZD|High: $2,031 NZD|Avg: $928 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 4$363 NZD
Retailer 6$388 NZD
Retailer 3$415 NZD
Retailer 7$726 NZD
Retailer 5$761 NZD
Retailer 2$821 NZD
Retailer 10$874 NZD
Retailer 9$896 NZD
Retailer 11$1,332 NZD
Retailer 8$1,335 NZD
MOH London$1,940 NZD

40 data points across 11 retailers

11 retailers$363 NZD to $1,940 NZD

A
Cheapest Retailer
-
$363 NZD
$204 USD
A
Retailer 2
-
$388 NZD
$218 USD
View
A
Retailer 3
-
$415 NZD
$233 USD
View
B+
Retailer 4
-
$726 NZD
$408 USD
View
A
Retailer 5
-
$761 NZD
€407 EUR
View
A
Retailer 6
-
$821 NZD
£363 GBP
View
B+
Retailer 7
-
$874 NZD
$491 USD
View
A
Retailer 8
-
$896 NZD
$503 USD
View
B
Retailer 9
-
$1,332 NZD
$748 USD
View
B
Retailer 10
-
$1,335 NZD
$750 USD
View
Most Expensive
B
MOH London
LG778671695 · Oct 26
$1,940 NZD
£858 GBP
View
10 more retailers have this diamond
Prices start from $363 NZDSave up to $1,577 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Round
$363 NZD